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An inorganic fiber state bismuth compound and application thereof

A bismuth compound and inorganic fiber technology, which is applied in the field of inorganic bismuth compounds, can solve the problems of high density and high shear dissociation, and achieve the effects of uniform size distribution, simple preparation method, and low production cost

Active Publication Date: 2019-01-15
HUNAN SHIZHUYUAN NON FERROUS METAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems in the prior art that the disordered fiber bismuth compound has a high density and is difficult to shear and dissociate to obtain uniformly dispersed single fibers and exist stably in other systems, the purpose of the present invention is to provide an inorganic fibrous bismuth compound, which uses oxidation The bismuth powder is subjected to hydrothermal treatment. During the hydrothermal treatment, under the synergistic effect of additives and surfactants, it grows orderly in the same direction to obtain

Method used

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  • An inorganic fiber state bismuth compound and application thereof
  • An inorganic fiber state bismuth compound and application thereof
  • An inorganic fiber state bismuth compound and application thereof

Examples

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Embodiment 1

[0046] A kind of preparation method of ordered bismuth compound fiber and colloid thereof of the present embodiment, its specific steps are as follows:

[0047] (1) Mix 8.8g NaCl and 1.6g NaCl 2 CO 3 Dissolve in 70mL containing 1.26g cetyltrimethylammonium chloride (critical micelle concentration 1.6×10 -2 mol / L) in deionized water, the surfactant concentration is 2.52 times of the critical micelle concentration, the pH is adjusted to 3 with 1M HCl solution, and then 7g of Bi with a median diameter of 15 μm is added 2 o 3 The powder was heated to 140° C. in a hydrothermal kettle and kept for 4 hours, and after cooling, it was washed twice with deionization to obtain ordered bismuth subcarbonate nanofibers.

[0048] (2) 0.5 g of octadecylamine was dissolved in 5 mL of ethanol to obtain an ethanol solution of octadecylamine.

[0049] (3) The above prepared (BiO) 2 CO 3 The nanofibers were treated with octadecyl ammonium ethanol solution and re-dispersed in 70mL deionized w...

Embodiment 2

[0051] A kind of preparation method of ordered bismuth compound fiber and colloid thereof of the present embodiment, its specific steps are as follows:

[0052] (1) Weigh 3.65g KCl and 7.6g K 2 SO 4 Dissolve in 70mL potassium oleate (critical micelle concentration 4.5×10 - 3 mol / L) 0.17g in deionized water, the concentration of surfactant is 1.68 times of the critical micelle concentration, and then use H 2 SO 4 (1.0M) adjust its pH to 2.0-3.0, then add 5g of Bi with a median diameter of 2μm 2 o 3 Powder, magnetically stirred at room temperature for 5 minutes, transferred to a polytetrafluoroethylene reactor, stirred and crystallized at 140 ° C for 4 hours;

[0053] (2) 0.5 g of octadecylamine was dissolved in 5 mL of ethanol to obtain an ethanol solution of octadecylamine.

[0054] (3) The above-mentioned hydrothermal product was washed with deionized water for 3 times, then treated with octadecylamine ethanol solution and then dispersed in 70mL of deionized water, add...

Embodiment 3

[0056] A kind of preparation method of ordered fiber bismuth compound and colloid thereof of the present embodiment, its specific steps are as follows:

[0057] (1) Dissolve 13.2g NaCl in 70mL containing dodecyltrimethylammonium chloride (critical micelle concentration 1.6×10 - 2 mol / L) 1.08g of deionized water, the surfactant concentration is 3.65 times the critical micelle concentration, adjust the pH to 3 with 1M HCl solution, and then add 7g of Bi with a median diameter of 0.5μm 2 o 3 The powder was heated up to 160° C. in a hydrothermal kettle and kept for 2 hours. After cooling, it was washed twice with deionization to obtain bismuth oxychloride nanofibers.

[0058] (2) 0.5 g of octadecylamine was dissolved in 5 mL of ethanol to obtain an ethanol solution of octadecylamine.

[0059] (3) Add the aforementioned bismuth oxychloride nanofibers to deionized water after being treated with octadecyl ammonium ethanol solution, then add 1g polyvinyl alcohol and 0.5g sodium ole...

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Abstract

An inorganic fiber state bismuth compound and application thereof are disclosed. Bismuth oxide as a raw material is treated in a hydrothermal system, and varieties and dosages of additives and surfactants in the hydrothermal system are adjusted to control and regulate the degree of order and phase composition of a fiber product so as to obtain the nanometer ordered inorganic fiber state bismuth compound. The compound is used for preparing waterborne colloid with a simple preparation process and low reaction temperature, and the obtained waterborne colloid is uniform in composition and good instability.

Description

technical field [0001] The invention belongs to the technical field of inorganic bismuth compounds, and relates to an inorganic ordered fibrous bismuth compound and its application. Background technique [0002] Bismuth is the most important stable metal element in the periodic table. It has special physical and chemical properties, is non-toxic and non-carcinogenic, and is called a green metal. Therefore, bismuth compounds, especially inorganic bismuth compounds, such as bismuth oxide, bismuth subcarbonate, bismuth subnitrate, bismuth oxysulfate, bismuth oxychloride, and various oxo salts such as bismuth vanadate, bismuth tungstate, and oxybromide Bismuth, bismuth phosphate, bismuth niobate, etc. are also widely used in various industries. For example, bismuth oxide is one of the most important bismuth compounds, and its main source is the by-product of copper or lead smelting. Bismuth oxide can be reduced to metal bismuth by hydrogen, and can also be used to prepare othe...

Claims

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Application Information

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IPC IPC(8): C01G29/00B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G29/00C01P2004/16C01P2004/64
Inventor 金胜明伏彩萍盛速李仲伦崔葵馨朱文平刘战
Owner HUNAN SHIZHUYUAN NON FERROUS METAL
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